How does calcium obey the octet rule when reacting to form compounds?
2 answers:
Answer: Option (C) is the correct answer.
Explanation:
Atomic number of calcium is 20 and its electronic distribution is 2, 8, 8, 2.
Therefore, a calcium atom contains two valence electrons and in order to attain stability it needs to lose two electrons.
Hence, it acquires a charge of +2 as by loss of two electrons.
As, according to the octet rule there must be eight electrons in the valence shell.
Thus, we can conclude that calcium obey the octet rule when reacting to form compounds as gives up electrons.
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The quantity which is equivalent to the product of the absolute index of refraction of water and the speed of light in water system is the speed of light in vacuum.
<h3>What is the speed of light?</h3>Speed of light is the rate of speed though the light travels. To find the speed of light in any medium, the following formula is used.
Here, (n) is the index of reaction and (c) is the speed of light in the vacuum. The speed of light in the vacuum is almost equal to the 3.0×10⁸ m/s.
Now the quantity which is equivalent to the product of the absolute index of refraction of water and the speed of light in water has to be find out.
The above formula can be written as,
Here, the product of index of refraction and speed of light is equal to the speed of light in vacuum. This will be true for water as well.
Thus, the quantity which is equivalent to the product of the absolute index of refraction of water and the speed of light in water system is the speed of light in vacuum.
Learn more about the speed of light here;
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